Aviation Accident Summary SEA86LA089

WALLA WALLA, WA, USA

Aircraft #1

N87595

HILLER 12E

Analysis

A CATASTROPHIC FAILURE OF THE PLANETARY GEAR OF THE TRANSMISSION OCCURRED ABOUT 51 FLIGHT HOURS AFTER OVERHAUL. DURING FORCED LANDING A HARD LANDING OCCURRED SEVERING THE TAIL BOOM. A FIRE THEN ERUPTED.

 

Source: NTSB Aviation Accident Database

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